Effect of graphene oxide synthesis method on properties and performance of polysulfone-graphene oxide mixed matrix membranes

Research output: Contribution to journalArticle

Abstract

Graphene oxide (GO) has shown great promise as a nanofiller to enhance the performance of mixed matrix composite membranes (MMMs) for water treatment applications. However, GO can be prepared by various synthesis routes, leading to different concentrations of the attached oxygen functional groups. In this research, GO produced by the Hummers’, Tour, and Staudenmaier methods were characterized and embedded at various fractions into the matrix of polysulfone (PSf) and used to prepare microfiltration membranes via the phase inversion process. The effects of the GO preparation method and loading on the membrane characteristics, as well as performance for oil removal from an oil-water emulsion, are analyzed. Our results reveal that GO prepared by the Staudenmaier method has a higher concentration of the more polar carbonyl group, increasing the membrane hydrophilicity and porosity compared to GO prepared by the Hummers’ and Tour methods. On the other hand, the Hummers’ and Tour methods produce GO with larger sheet size, and are more effective in enhancing the mechanical properties of the PSf membrane. Finally, all MMMs exhibited improved water flux (up to 2.7 times) and oil rejection, than those for the control PSf sample, with the optimum GO loading ranged between 0.1–0.2 wt%.

Original languageEnglish
Article number769
JournalNanomaterials
Volume9
Issue number5
DOIs
Publication statusPublished - 1 May 2019

Fingerprint

Polysulfones
Graphite
Oxides
Graphene
Membranes
Oils
Composite membranes
Microfiltration
polysulfone P 1700
Water
Hydrophilicity
Emulsions
Water treatment
Functional groups
Porosity
Oxygen
Fluxes
Mechanical properties

Keywords

  • Carbon to oxygen ratio
  • Flux
  • Functional group
  • Hydrophilicity
  • Microfiltration
  • Nanofiller
  • Oil separation
  • Polymer composite
  • Polymeric membrane

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)

Cite this

@article{2d496079dcba4c43a6c69a7d2e2ea91c,
title = "Effect of graphene oxide synthesis method on properties and performance of polysulfone-graphene oxide mixed matrix membranes",
abstract = "Graphene oxide (GO) has shown great promise as a nanofiller to enhance the performance of mixed matrix composite membranes (MMMs) for water treatment applications. However, GO can be prepared by various synthesis routes, leading to different concentrations of the attached oxygen functional groups. In this research, GO produced by the Hummers’, Tour, and Staudenmaier methods were characterized and embedded at various fractions into the matrix of polysulfone (PSf) and used to prepare microfiltration membranes via the phase inversion process. The effects of the GO preparation method and loading on the membrane characteristics, as well as performance for oil removal from an oil-water emulsion, are analyzed. Our results reveal that GO prepared by the Staudenmaier method has a higher concentration of the more polar carbonyl group, increasing the membrane hydrophilicity and porosity compared to GO prepared by the Hummers’ and Tour methods. On the other hand, the Hummers’ and Tour methods produce GO with larger sheet size, and are more effective in enhancing the mechanical properties of the PSf membrane. Finally, all MMMs exhibited improved water flux (up to 2.7 times) and oil rejection, than those for the control PSf sample, with the optimum GO loading ranged between 0.1–0.2 wt{\%}.",
keywords = "Carbon to oxygen ratio, Flux, Functional group, Hydrophilicity, Microfiltration, Nanofiller, Oil separation, Polymer composite, Polymeric membrane",
author = "Safae Sali and Hamish Mackey and Ahmed Abdala",
year = "2019",
month = "5",
day = "1",
doi = "10.3390/nano9050769",
language = "English",
volume = "9",
journal = "Nanomaterials",
issn = "2079-4991",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "5",

}

TY - JOUR

T1 - Effect of graphene oxide synthesis method on properties and performance of polysulfone-graphene oxide mixed matrix membranes

AU - Sali, Safae

AU - Mackey, Hamish

AU - Abdala, Ahmed

PY - 2019/5/1

Y1 - 2019/5/1

N2 - Graphene oxide (GO) has shown great promise as a nanofiller to enhance the performance of mixed matrix composite membranes (MMMs) for water treatment applications. However, GO can be prepared by various synthesis routes, leading to different concentrations of the attached oxygen functional groups. In this research, GO produced by the Hummers’, Tour, and Staudenmaier methods were characterized and embedded at various fractions into the matrix of polysulfone (PSf) and used to prepare microfiltration membranes via the phase inversion process. The effects of the GO preparation method and loading on the membrane characteristics, as well as performance for oil removal from an oil-water emulsion, are analyzed. Our results reveal that GO prepared by the Staudenmaier method has a higher concentration of the more polar carbonyl group, increasing the membrane hydrophilicity and porosity compared to GO prepared by the Hummers’ and Tour methods. On the other hand, the Hummers’ and Tour methods produce GO with larger sheet size, and are more effective in enhancing the mechanical properties of the PSf membrane. Finally, all MMMs exhibited improved water flux (up to 2.7 times) and oil rejection, than those for the control PSf sample, with the optimum GO loading ranged between 0.1–0.2 wt%.

AB - Graphene oxide (GO) has shown great promise as a nanofiller to enhance the performance of mixed matrix composite membranes (MMMs) for water treatment applications. However, GO can be prepared by various synthesis routes, leading to different concentrations of the attached oxygen functional groups. In this research, GO produced by the Hummers’, Tour, and Staudenmaier methods were characterized and embedded at various fractions into the matrix of polysulfone (PSf) and used to prepare microfiltration membranes via the phase inversion process. The effects of the GO preparation method and loading on the membrane characteristics, as well as performance for oil removal from an oil-water emulsion, are analyzed. Our results reveal that GO prepared by the Staudenmaier method has a higher concentration of the more polar carbonyl group, increasing the membrane hydrophilicity and porosity compared to GO prepared by the Hummers’ and Tour methods. On the other hand, the Hummers’ and Tour methods produce GO with larger sheet size, and are more effective in enhancing the mechanical properties of the PSf membrane. Finally, all MMMs exhibited improved water flux (up to 2.7 times) and oil rejection, than those for the control PSf sample, with the optimum GO loading ranged between 0.1–0.2 wt%.

KW - Carbon to oxygen ratio

KW - Flux

KW - Functional group

KW - Hydrophilicity

KW - Microfiltration

KW - Nanofiller

KW - Oil separation

KW - Polymer composite

KW - Polymeric membrane

UR - http://www.scopus.com/inward/record.url?scp=85067114885&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85067114885&partnerID=8YFLogxK

U2 - 10.3390/nano9050769

DO - 10.3390/nano9050769

M3 - Article

VL - 9

JO - Nanomaterials

JF - Nanomaterials

SN - 2079-4991

IS - 5

M1 - 769

ER -